Based on the electromagnetic induction phenomenon, the motor realizes the conversion between mechanical energy and electrical energy, as well as the transformation of electrical energy, including two categories: rotating motor and transformer. The main functions of motor are shown in three aspects: first, production, transmission and distribution of electric energy; second, driving various production machinery and equipment; third, as an important component of various control systems and automatic and intelligent devices.<br>In October 1831, Ferrari created the first model of induction generator. Since then, the research and application of the store has developed rapidly. Under the direct promotion of the production needs, the generators and motors with use value have come out one after another, and are constantly improved in the application. In 1845, British physicist Huis made great success by using external power to excite the coil and replacing permanent magnet with electromagnet. Around 1880, Ferranti of England had to enter the alternator and put forward the concept of AC high voltage transmission. With the progress of science, the improvement of raw material performance and manufacturing process, the determination of the basis is just tens of thousands of varieties and specifications, the power level of great difference is very wide, the wide speed range is very flexible environment, the adaptability meets the needs of all sectors of the national economy and human life.<br>The generator converts mechanical power to electrical power, and the motor converts electrical power to mechanical power. Converting electric power into another form of electric power can be divided into transformer, converter, frequency converter and camera. The control motor can be divided into transformer, DC motor, asynchronous motor, synchronous motor and AC commutator motor according to the running speed. The generator is a mechanical generator that transforms mechanical energy into electrical energy. After transforming mechanical energy into electrical energy, it is sent to the power grid. There are many kinds of motive power to provide mechanical energy. Water turbine, wind turbine oil, fuel oil and steam generated by coal or atomic energy reactor change thermal energy into mechanical energy, gas turbine, gasoline engine, diesel engine, etc. The function of electric motor is to convert electric energy into mechanical energy, which is widely used in modern production machinery. According to the actual needs, the motor can be divided into rotating motor, linear motor, plane motor, spiral motor and spherical motor. Transformer is a kind of static motor, its main components are core and winding. The transformer can only transfer alternating current energy, but can not generate electric energy. It can only change the magnitude of alternating voltage or current without changing the frequency. Special motors are divided into permanent magnet brushless motor, linear link motor, superconducting motor and ultrasonic piezoelectric motor.<br>Ekzistas industriaj gasoj turbino generatoro, generatoro kaj vento turbino. Produktado de minado kaj oilfield haveno loĝistiko centro, konstruo kaj vojo kaj ponto konstruo en industrio, agrikulturo, brutobredado kaj fiŝkaptado CLP ankaŭ ludas integra rolon. En la transporto sektoro, elektraj lokomotivoj kaj urba relo transito interna brulado au tomotriz, maraj veturiloj, elektraj veturiloj maglev relo aŭto tirado lineara motoro veturado havas grandan disvolviĝon en la povo industrio. Selekti la tipon de motoro estas subteni mekanikaj ecoj de AC aŭ Dc starta rendimento kaj la rapido koncerne prezon konsideroj. Por elektra motoro por trafa produktado maŝinaro, ni devas unue konsideri k iom povon la elektra motoro potenco la elektra motoro kun racia elekto de granda ekonomia graveco. Kontrolo komencante operacion de la motoro konsistas el PK motoro, startigilo ekde sinkrona motoro de la motoro. Bremso motoro konsistas el dinamika bremsita, reverso bremsita, regenera bremsado, kirlo nuna bremson.<br>En elektra inĝenierio, la fizika modelo, matematika modelo, la efektiva operacio de eksperimenta testoj estas rajdis tre gravan rolon.<br>Alta tensio alta tensio elektra komutilo, transformiloj, ondadon arestantojn. Ĝenerale rilatas al malalta tensio elektra alterna tensio elektra ekipaĵo 1500 voltoj 1000 voltoj PK potenco dissendo kaj kontrolo sistemo. Malalta tensio elektra contactors relajsoj, kie la relajso estas moderna aŭtomata kontrolo sistemo la bazaj elektraj komponantoj , taŭga por kontakto kun oftaj longdistanca kreado kaj diplomatiajn rilatojn PK ĉefa cirkvito kaj la elektra kontrolo cirkvito de granda kapablo.<br>
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